Cake task:

Task("Webpack")
.Does(() =>
{
    Webpack.Global();
    Webpack.FromPath(".").Global();
    Webpack.Global(s => s.WithBuildMode(WebpackBuildMode.Production));
    Webpack.Global(s => s.OutputAsJson());
    Webpack.Global(s => s.WithArguments("in.js out.js --verbose"));

    Webpack.Local();
    Webpack.FromPath(".").Local();
    Webpack.Local(s => s.SetPathToWebpackJs("some-other-directory/node_modules/webpack.bin.webpack.js"));        
    Webpack.Local(s => s.WithBuildMode(WebpackBuildMode.Production));
    Webpack.Local(s => s.OutputAsJson());
    Webpack.Local(s => s.WithArguments("in.js out.js --verbose"));        
});